INTRODUCTION In modern North American beef and dairy production systems, cattle typically are fed relatively high concentrate diets to achieve maximum production. Usually grains are processed to increase their digestibility in the rumen and in the total digestive tract; this increases feed conversion efficiency and helps reduce feed costs. However, the potential benefits of increased ruminal st...

BACKGROUND Klebsiella spp. are implicated as a common cause of bacterial pneumonia in horses, but few reports describe clinical presentation and disease progression. HYPOTHESIS/OBJECTIVES To describe the signalment, clinicopathologic data, radiographic and ultrasonographic findings, antimicrobial susceptibility, outcome, and pathologic lesions associated with Klebsiella spp. pneumonia in hors...

Analogous to the situation in human medicine, contemporary practices in horse management, which incorporate lengthy periods of physical inactivity coupled with provision of nutritional rations characterized by inappropriately high sugar and starch, have led to obesity being more commonly recognized by practitioners of equine veterinary practice. In many of these cases, obesity is associated wit...

Lameness in dairy cattle causes crippling economic losses to the industry. With up to 52% (average 20-25%) of high-production intensively-managed dairy cows becoming lame each year the loss in milk production is devastating for producers (Clarkson et al. 1996; Green et al. 2002; Warnick et al. 2001). The physiopathological patterns reviewed in this paper also impinge on reproductive performance...

Equine Cushing's disease (ECD) is a chronic progressive disease of the intermediate pituitary gland of older horses. Horses with Cushing's disease often have other health problems, such as laminitis, chronic infections, pseudolactation, and other issues. Diagnosis of ECD is usually based on clinical signs and endocrine tests. Medical management of affected horses is usually a long-term or lifel...

Endocrinopathic laminitis (EL) is a vascular condition of the equine hoof resulting in severe lameness with both welfare and economic implications. EL occurs in association with equine metabolic syndrome and equine Cushing's disease. Vascular dysfunction, most commonly due to endothelial dysfunction, is associated with cardiovascular risk in people with metabolic syndrome and Cushing's syndrome...

Bothrops alternatus (yarará grande, víbora de la cruz) es una serpiente perteneciente a familia Viperidae, y se encuentra ampliamente distribuida en Argentina. En el nordeste nuestro país, esta ocasiona mayor número accidentes. Existen reportes envenenamiento equinos, siendo sus signos síntomas más importantes: inflamación hemorragia, dermo mionecrosis área inoculación del veneno. Por otro lado...

Hindgut acidosis (HGA) is a common problem in horses consuming either large quantities of grain or fructan-rich forages. Horses suffering from HGA may develop anorexia, colic, or laminitis or display stereotypical behaviors such as wood chewing and stall weaving. Feeding a protected sodium bicarbonate (PSB) is a safe and effective method of attenuating HGA without producing a metabolic alkalosi...